I love this method. The star (Teach children to S.T.A.R.: Smile, Take a deep breath And Relax.) is a favorite with my twos. I find reminding the kids "My job is to keep you safe, Your JOB is to help me keep it that way" helps alot too (making them responsible for themselves)
https://consciousdiscipline.com/free...sroom/s-t-a-r/
check out the free resources. I started there and implemented some of it.
https://consciousdiscipline.com/free-resources/
Theres also a cool song from there:
I wish you well
I wish you well
all through the day today
I wish you well
We change it to "I wish (childs name) well" and do it as our opening song.